William kneen



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KNEEN. MEANS FOR GONSUMING SMOKE.

No. 340,918. Patented Apr. 27, 1886.

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W. KNEEN. MEANS FOR GONSUMING'SMOKE.

Patented Apr. 27, 1886.

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UNITED STATES PATENT OFFICE,

VILLIAM KNEEN, OF BARROW-IN-FURNESS, COUNTY OF LANCASTER, ENGLAND,

MEANS FOR CCNSUMING SMOKE.

SPECIFICATION forming part of Letters Patent-No. 340,918, dated April 27, 1886.

Application filed February 2, 1880. Serial No. 190,573.

ers, (for which I have applied for a patent in Great Britain, No. 7,393, on the 17th June, 1885,) of which the following is a specification.

My invention has for its principal object to consume the smoke or combustible products from furnaces or fires which would otherwise escape. I thus effect economy in fuel.

According to my invention, I provide in the rearward part of the furnace or furnaces, or so as to be heated by the flames therefrom, contracted spaces or chambers constituting zagzag passages or baffling-surfaces. The flue or flues from the furnace or furnaces conduct the smoke and unconsumed products of combustion on their way to the chimney into these contracted spaces or chambers, by which they are divided into numerous small streams, which are caused to impinge against the baffiingsurfaces provided therein. Air is supplied by a fan or otherwise to the gases as they pass into each of the contracted passages, and as the surfaces in the said contracted passages are in a highly-heated condition the gaseous mixture is ignited as it impinges against the baffling-surfaces, which causes a generation of great additional heat, thereby greatly augmenting the heating-power of the furnace or fire relatively to the amount of fuel consumed and preventing or greatly reducing nuisance from escaping smoke. The flames resulting from theignition of the gaseous mixture may be conducted by a returir fine, so asto utilize the heat therefrom.

The invention may be applied to the consumption of smoke from cokeovens or other places where smoke is generated; and in order that my said invention may be fully understood I shall now proceed more particularly to describe a manner of performing the same, and for that purpose shall refer to the several figures on the annexed sheet of drawings, the same letters of reference indicating corresponding parts in all the figures.

(No model.) Patented in England J one 17, 1885, No. 7,393.

The accompanying drawings representa portion of a steam-boiler'sufficient to explain the said application of my invention.

Figure l is a vertical section; Fig. 2, EthOIl zontal sectional plan, and Fig. 3 a transverse Vertical section at the rear of the bridge.

In the flue at the rear of the bridge I build a chamber, A, of fire-clay or other suitable material, having on it a number of zigzag passages, a, through which the products of combustion from the furnace B pass. In front of the structure A are conduits, pipes, or passages G, which open into an air-chamber, D, into which air is led byapipe, E. Into these pipes, conduits, or passages air from ablower or air-forcing apparatus is forced, the said air becoming heated in its passage, and issuing in a number of jets or in a divided state from the orifices 0 into the passages a, where it and the products of combustion commingle and are baffled by the various surfaces against which they impinge, and the air causes effective burning of the said products and the gen eration of great additional heat.

It will be understood that the invention can be employed generally for the consumption of smoke and economy of fuel in furnaces and fires, and that smoke or products of combustion from any source can, according to my invention, be passed through zigzag heated passages or against equivalent baffling-surfaces and be mixed with air in fine streams or jets for the generation from the said products of heat that would otherwise be wasted.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is The combination of a fire-place or furnace with heated zigzag passages in communication therewith and means for passing air in a finely-divided state into said zigzag passages, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

. WILLIAM KNEEN. Vitnesses:

WILLIAM EVERY ROBERTS,

12 Dmnfries St, Barrow-in-Fm'ness. Brennan WATKINsoN,

17 Harrison St, Barrow m-Furaess. 

